SN8314 : Limestone with chert banding

near to Craig-y-Nos, Powys, Great Britain

Limestone with chert banding
Limestone with chert banding
Group: Carboniferous Limestone, Formation: Upper Limestone. The chert here defines the bedding planes as they were deposited from a siliceous ooze at the same time as the limestone. The presence of chert lenses in joints does infer that some at least was post depositional.
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SN8314, 5 images   (more nearby - lo-fi)
Photographer
Janine Forbes   (find more nearby)
Image classification
Geograph (First for SN8314)
Date Taken
September 1989   (more nearby)
Submitted
Wednesday, 18 May, 2005
Category
Geological feature   (more nearby)
Subject Location
OSGB36: geotagged! SN 831 143 [100m precision]
WGS84: 51:48.9040N 3:41.8356W
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